(19)

(11)

EP 3 172 351 A1

(12)

(43) Date of publication: 31.05.2017 Bulletin 2017/22 (21) Application number: 14812287.2 (22) Date of filing: 22.07.2014

(51) International Patent Classification (IPC):  C23C 4/06(2016.01) B26D 7/20(2006.01) C23C 4/18(2006.01) (86) International application number: PCT/IB2014/001697 (87) International publication number: WO 2016/012827 (28.01.2016 Gazette 2016/04)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME (71) Applicant: Sandvik Intellectual Property AB 811 81 Sandviken (SE)	(72) Inventors: SECONDI, Jacques Joseph Philippe F-38122 Monsteroux-Milieu (FR) DIJON, Pierre-Luc Paul André F-38550 Aubrives sur Varèze (FR) (74) Representative: Setréus, Ellen  Sandvik Intellectual Property AB 811 81 Sandviken 811 81 Sandviken (SE)